CN110317600A - A kind of suspension emulsion type slippery water friction reducer and preparation method thereof - Google Patents
A kind of suspension emulsion type slippery water friction reducer and preparation method thereof Download PDFInfo
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- C09K8/60—Compositions for stimulating production by acting on the underground formation
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- C09K8/86—Compositions based on water or polar solvents containing organic compounds
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Abstract
The invention discloses a kind of suspension emulsion type slippery water friction reducers and preparation method thereof.The suspension emulsion type slippery water friction reducer includes following components by weight: 35~55 parts of white oil, 0.5~3.5 part of stabilizer, 0.5~2.5 part of extracting and cutting agent, 25~55 parts of polyacrylamide pulvis, 2.5~5.5 parts of emulsifier, 0.2~0.6 part of preservative.Friction reducer produced by the present invention has the characteristics that solution rate is fast, resistance-reducing yield is high, compatibility is high, dosage is few, simple process.Compared with prior art, pulvis polyacrylamide and white oil component are used in suspension emulsion type slippery water friction reducer made of the present invention simultaneously, be conducive to the dispersion effect of increase system and improve the solid content of emulsion-type friction reducer, increases system solution rate, and reduce production and transport cost.Emulsifier and preservative are introduced, so that product of the present invention has good appearance, longer Storage period makes it preferably suitable for industrial production.
Description
Technical field
The invention belongs to field of oil development, more particularly, to a kind of suspension emulsion type slippery water friction reducer and its system
Preparation Method.
Background technique
Slippery water fracturing fluid system is acid fracturing and the most common fracturing fluid system of shale gas pressure break at this stage, slippery water pressure break
The main component of liquid is a large amount of water and proppant, a small amount of surfactant, friction reducer, clay stabilizer etc..But due to polymer
Content is few, and slippery water fracturing fluid system is lower than the viscosity of conventional crosslinked gel system, and proppant carrying capability is poor, slippery water
It is usually larger to be pumped into speed, easily causes turbulent flow, causes frictional resistance in fracturing process to increase, it is therefore desirable to which friction reducer, which is added, makes pressure break mistake
The huge energy loss generated in journey in the frictional resistance reduced under higher pump speed between pipeline and water or saline solution.Wherein
Friction reducer is the core of slippery water fracturing fluid system.
Polymer powder friction reducer, the dosage of W/O inverted polymer friction reducer are maximum in polymeric friction reducer, and effect is most
It is good, the common polymer powder friction reducer in the country, and external common W/O inverted polymer friction reducer.External common friction reducer one
As be polyacrylamide polymer, have many advantages, such as that resistance-reducing performance is high, good economy performance low using concentration, in shale reservoir
Large-scale application is obtained in fracturing reform, there is viscosity height, and dosage can seldom reach drop resistance and require, and have spy at low cost
Property, compatibility is good, is easy to water flooding at this stage and additive compatibility.
Chinese patent application CN 201611052048.2 discloses a kind of Instant salt tolerant friction reducer and preparation method thereof,
The following steps are included: S1, by oily phase, emulsifier be added reactor in be stirred；By acrylamide, resistance to salt monomer, emulsification
Auxiliary agent, chelating agent are dissolved in the water, and obtain solution A；S2, it is passed through nitrogen to reactor, and solution A is added dropwise into reactor；S3,
After reactor is stirred 30min, initiator for reaction 5h is added；S4, again by polymethyl acyloxyethyl trimethyl ammonia chloride
Ammonium is added in reactor, reacts 1 hour, obtains finished product.By the way that resistance to salt monomer is added into friction reducer, make friction reducer that there is salt tolerant
Characteristic, prepare utilization again so as to make to return drain, it is difficult to solve the problems, such as to return drain processing, passes through the control of raw material and technique
System realizes the rapid aquation dissolution of product.Chinese patent CN201410834113.1 discloses fracturing fluid friction reducer and its preparation
Method, suitable for the fracturing fluid of shale gas pressure break；Chinese patent CN201510760912.3 discloses a kind of oil field fracturing fluid cream
Liquid polymerize friction reducer and its preparation and application, the method includes with anionic monomer, cationic monomer, emulsifier, diesel oil and
Initiator is reaction medium by solution polymerization using water, obtains the oil field fracturing fluid emulsion polymerization friction reducer；The yin
The weight ratio of ion monomer, cationic monomer and water is 25-40:2-40:20-50；With anionic monomer, cationic monomer, cream
Agent, diesel oil, initiator and water total weight be 100% meter, wherein emulsifier weight consumption is 0.05%-0.2%, diesel oil weight
Amount dosage is 2%-8%, the weight consumption of initiator is 0.02%-0.1%.
" petrochemical industry ", 2015,05 " synthesis of emulsion-type friction-reducing agent of fracturing fluid and its performance use inverse emulsion polymerization
Method " it discloses with acrylamide (AM), acrylic acid (AA) and 2- acrylamide-2-methylpro panesulfonic acid (AMPS) as monomer, mistake
Sodium sulphate/sodium sulfite is initiator, and sorbitan monooleate and alkyl phenol polyoxyethylene ether are emulsifier, synthesizes slippery water
Fracturing fluid emulsion-type friction reducer；The dosage of investigation emulsifier and initiator, reaction temperature are to monomer conversion and product property
Influence；Using FTIR and13The methods of C NMR characterizes product.Characterization result shows that product AM-AA-AMPS glues
Equal relative molecular mass is greater than 1 × 107.The experimental results showed that synthesizing the suitable condition of friction reducer are as follows: 25 DEG C of reaction temperature, cream
Agent dosage 3% (w) (quality based on lotion), initiator amount 0.025% (w) (gross mass based on monomer), at this
For monomer conversion up to 99.9%, emulsion viscosity 650mPa.s, emulsion solid content is 35% (w) under part；It is added in clear water
0.10% (w) friction reducer, resistance-reducing yield reach 61.5%, and resistance-reducing yield is only down to 60.6% when shearing 5min, and has good
Anti-shear ability.
" New Chemical Materials ", 2015,05 " research and development of biology base reversed-phase emulsion type friction reducer and smooth aqueous systems with comment
Valence " disclose a kind of preparation method of suspension emulsion type slippery water friction reducer.
Xanthan gum-acrylamide -2- acrylamide-2-methylpro panesulfonic acid sodium graft copolymerization is prepared using antiphase emulsifiable method
Type shale gas pressure break friction reducer, using it as host agent, clay stabilizer that preferably compatibility is good, synergistic effect is excellent, fungicide,
Cleanup additive, and compound and form a kind of novel smooth aqueous systems.Laboratory test shows: 0.10% graft copolymerization friction reducer is water-soluble
Liquid resistance-reducing yield reaches 60% or more；The resistance-reducing yield for forming smooth aqueous systems reaches 60%, and prevents the swollen and row's of helping property with good
Can, excellent temperature-resistant anti-salt performance and endurance of cutting energy.
But the above friction reducer there is the technological process of productions it is more complex, field application is complicated for operation the features such as be unfavorable for carrying out
The problems such as popularization and use.
Summary of the invention
It is an object of the invention to solve, the current slippery water friction reducer technological process of production is more complex, field application operation
The features such as complicated, is unfavorable for the problems such as being promoted the use of, and provides a kind of suspension emulsion type slippery water friction reducer and its preparation side
Method.
To achieve the goals above, the first aspect of the present invention provides a kind of suspension emulsion type slippery water friction reducer, this is outstanding
Floating emulsion-type slippery water friction reducer includes following components by weight:
35~55 parts of white oil, 0.5~3.5 part of stabilizer, 0.5~2.5 part of extracting and cutting agent, polyacrylamide pulvis 25~55
Part, 2.5~5.5 parts of emulsifier, 0.2~0.6 part of preservative.
As the preferred scheme of the present invention, the suspension emulsion type slippery water friction reducer includes by weight with the following group
Point:
40~50 parts of white oil, 1~3 part of stabilizer, 1~2 part of extracting and cutting agent, 30~50 parts of polyacrylamide pulvis, emulsifier 3
~5 parts, 0.3~0.5 part of preservative.
In accordance with the present invention it is preferred that the white oil is No. 7 white oils or No. 10 white oils.
According to the present invention, the stabilizer can be the stabilizer that those skilled in the art routinely use, it is preferable that described
Stabilizer is organoclay.
In accordance with the present invention it is preferred that the extracting and cutting agent is triethylene glycol butyl ether and/or butyrolactone.
In accordance with the present invention it is preferred that the emulsifier is selected from Tween-20, Arlacel-80, Tween-80, OP-10 and polyethers silicon
At least one of oil.
In accordance with the present invention it is preferred that the preservative is in formaldehyde, hexadecyltrimethylammonium chloride and sodium benzoate
It is at least one.
In accordance with the present invention it is preferred that the polyacrylamide is anionic polyacrylamide or is salt resistance monomer and propylene
The copolymer of amide monomer；The salt resistance monomer is n-vinyl pyrrolidone, 2- vinylpyridine, acryloyl morpholine, ethylene
At least one of base sulfonic acid, acrylic sulfonic acid, vinylbenzenesulfonic acid and 2- acrylamide-2-methylpro panesulfonic acid.
The second aspect of the present invention provides the preparation method of the suspension emulsion type slippery water friction reducer, the preparation method
Include the following steps:
Step 1: white oil is placed in the reaction kettle of rotation；
Step 2: stabilizer is added into reaction kettle, stirs, be completely dispersed stabilizer；
Step 3: continuously adding extracting and cutting agent under agitation；
Step 4: polyacrylamide pulvis is added, it is lasting to stir；
Step 5: emulsifier is added, it is lasting to stir；
Step 6: cooling down and continuing to stir；
Step 7: preservative is added, the suspension emulsion type slippery water friction reducer is obtained.
The sequence of each step can be adjusted according to actual needs in the preparation method.
In accordance with the present invention it is preferred that step 1, into step 5, the temperature in reaction kettle is 50~80 DEG C；Step 6 is extremely
In step 7, the temperature in reaction kettle is 30~40 DEG C.
In accordance with the present invention it is preferred that revolving speed >=800rpm of reaction kettle；Step 4: persistently being stirred in step 5 and step 6
The time mixed is 5-20min.
Beneficial effects of the present invention:
Friction reducer produced by the present invention has that solution rate is fast, resistance-reducing yield is high, compatibility is high, dosage is few, simple process etc.
Feature.Compared with prior art, pulvis polyacrylamide is used simultaneously in suspension emulsion type slippery water friction reducer made of the present invention
Amine and white oil component are conducive to the dispersion effect of increase system and improve the solid content of emulsion-type friction reducer, it is molten to increase system
Speed is solved, and reduces production and transport cost.Emulsifier and preservative are introduced, so that product of the present invention has good appearance, compared with
Long Storage period makes it preferably suitable for industrial production.
Other features and advantages of the present invention will then part of the detailed description can be specified.
Specific embodiment
The preferred embodiment of the present invention is described in more detail below.Although the following describe preferred implementations of the invention
Mode, however, it is to be appreciated that may be realized in various forms the present invention without that should be limited by the embodiments set forth herein.Phase
Instead, these embodiments are provided so that the present invention is more thorough and complete, and can be by the scope of the present invention completely
It is communicated to those skilled in the art.
Embodiment 1:
A kind of suspension emulsion type slippery water friction reducer is prepared, is sequentially included the following steps:
Step 1: in the reaction kettle for the rotation that No. 7 white oils of 40kg are placed in 1000 revs/min, No. 7 in reaction kettle are white
Oil is warming up to 55 DEG C；
Step 2: the organoclay of addition 1kg is as stabilizer into reaction kettle, keeping reactor temperature is 55 DEG C, warp
Stirring is so that organoclay is completely dispersed；
Step 3: keeping the temperature of system in reaction kettle is 55 DEG C, and continuously added under agitation into reaction kettle
The triethylene glycol butyl ether of 2kg is as extracting and cutting agent；
Step 4: adjusting and keeping reactor temperature is 55 DEG C, while 1000 revs/min of revolving speed is kept, to reaction kettle
In be slowly added to 40kg polyacrylamide pulvis, after pulvis adds, then continue 10 minutes, the polyacrylamide is poly- for anion
Acrylamide；
Step 5: adjusting and keeping reactor temperature is 50 DEG C, the emulsifier of 1kg is slowly added into reaction kettle, then
The revolving speed for being kept for 1000 revs/min, continues 10 minutes；The emulsifier is Tween-20；
Step 6: adjusting and keeping reactor temperature is 30 DEG C, by reaction kettle drop revolving speed to 800 revs/min, then 10 are kept
Minute；
Step 7: adjusting and keeping reactor temperature is 30 DEG C, then reaction kettle revolving speed is risen to 1000 revs/min, at 3 points
In clock, the formaldehyde of 0.3kg is added as preservative, obtains finished product.
Embodiment 2:
A kind of suspension emulsion type slippery water friction reducer is prepared, is sequentially included the following steps:
Step 1: in the reaction kettle for the rotation that No. 7 white oils of 50kg are placed in 1000 revs/min, No. 7 in reaction kettle are white
Oil is warming up to 70 DEG C；
Step 2: the organoclay of addition 3kg is as stabilizer into reaction kettle, keeping reactor temperature is 70 DEG C, warp
Stirring is so that organoclay is completely dispersed；
Step 3: keeping the temperature of system in reaction kettle is 70 DEG C, and continuously added under agitation into reaction kettle
The butyrolactone of 2kg is as extracting and cutting agent；
Step 4: adjusting and keeping reactor temperature is 65 DEG C, while 1000 revs/min of revolving speed is kept, to reaction kettle
In be slowly added to 50kg polyacrylamide pulvis, after pulvis adds, then continue 10 minutes, the polyacrylamide be salt resistance monomer
With the copolymer of acrylamide monomer；The salt resistance monomer is n-vinyl pyrrolidone.
Step 5: adjusting and keeping reactor temperature is 70 DEG C, 5kg emulsifier is slowly added into reaction kettle, then protect
The revolving speed for holding 1000 revs/min continues 10 minutes；Emulsifier is the mixture of 2kg Tween-20 and 1kg polyether silicone oil；
Step 6: adjusting and keeping reactor temperature is 30 DEG C, by reaction kettle drop revolving speed to 800 revs/min, then 10 are kept
Minute；
Step 7: adjusting and keeping reactor temperature is 40 DEG C, then reaction kettle revolving speed is risen to 1000 revs/min, 3~
In 5 minutes, the hexadecyltrimethylammonium chloride of 0.4kg is added as preservative, obtains finished product.
Embodiment 3:
A kind of suspension emulsion type slippery water friction reducer is prepared, is sequentially included the following steps:
Step 1: in the reaction kettle for the rotation that No. 7 white oils of 45kg are placed in 1000 revs/min, No. 7 in reaction kettle are white
Oil is warming up to 60 DEG C；
Step 2: the organoclay of addition 2kg is as stabilizer into reaction kettle, keeping reactor temperature is 60 DEG C, warp
Stirring is so that organoclay is completely dispersed；
Step 3: keeping the temperature of system in reaction kettle is 60 DEG C, and continuously added under agitation into reaction kettle
The butyrolactone of 1.5kg is as extracting and cutting agent；
Step 4: keeping reactor temperature is 60 DEG C, while 1000 revs/min of revolving speed is kept, slowly into reaction kettle
45kg polyacrylamide pulvis is added, after pulvis adds, then continues 10 minutes, the polyacrylamide is anion pp acyl
Amine；
Step 5: adjusting and keeping reactor temperature is 60 DEG C, 4kg emulsifier is slowly added into reaction kettle, then protect
The revolving speed for holding 1000 revs/min continues 10 minutes；Emulsifier is the mixing of 2kg Tween-20,1kg Arlacel-80 and 1kg polyether silicone oil
Object.
Step 6: adjusting and keeping reactor temperature is 30 DEG C, by reaction kettle drop revolving speed to 800 revs/min, then 10 are kept
Minute；
Step 7: adjusting and keeping reactor temperature is 30 DEG C, then reaction kettle revolving speed is risen to 1000 revs/min, 3~
In 5 minutes, the sodium benzoate of 0.5kg is added as preservative, obtains finished product.
Embodiment 4:
A kind of suspension emulsion type slippery water friction reducer is prepared, is sequentially included the following steps:
The 7# white oil of 50kg is added in clean reaction kettle, control revolving speed is 1000 revs/min, increases the temperature to 60~70
DEG C stirring 10 minutes；2kg stabilizer organoclay is added, keeping the temperature of system in reaction kettle is 60~70 DEG C, is stirred 15 minutes；
Then 1.5kg extracting and cutting agent triethylene glycol butyl ether is added, stirs 15 minutes；Then by the anion of 40kg poly- third in 1 hour
Make to be completely dispersed agitated under the speed that 1000 revs/min of acrylamide pulvis；The temperature for keeping system in reaction kettle is 60 ± 5 DEG C
Continue stirring 10 minutes；Under conditions of the temperature of system is 60~70 DEG C in reaction kettle, 4kg is slowly added to aforesaid reaction vessel
Arlacel-80 emulsifier keeps 1000 revs/min of mixing speeds are constant to continue stirring 10 minutes；By the temperature drop of system in reaction kettle
To 30 DEG C, the whole speed of the rotation of reaction kettle is reduced to 800 revs/min, stirs 10 minutes, then the temperature of system in reaction kettle is raised to
40 DEG C~50 DEG C, the whole speed of the rotation of reaction kettle is increased to 1000 revs/min, and in 3~5 minutes, the preservative first of 0.5kg is added
Aldehyde obtains target product after blowing.
Embodiment 5:
A kind of suspension emulsion type slippery water friction reducer is prepared, is sequentially included the following steps:
The 7# white oil of 45kg is added in clean reaction kettle, control revolving speed is 1000 revs/min, increases the temperature to 60~70
DEG C stirring 10 minutes；3kg stabilizer organoclay is added, keeping the temperature of system in reaction kettle is 60~70 DEG C, is stirred 15 minutes；
Then 2kg extracting and cutting agent butyrolactone is added, stirs 15 minutes；Then by the conventional anion polyacrylamide of 45kg in 1 hour
Make to be completely dispersed agitated under the speed that 1000 revs/min of amine pulvis；The temperature for keeping system in reaction kettle is 60 ± 5 DEG C of continuation
Stirring 10 minutes；Under conditions of the temperature of system is 60~70 DEG C in reaction kettle, 5kg is slowly added to aforesaid reaction vessel and is spat
Warm -20 emulsifiers keep 1000 revs/min of mixing speeds are constant to continue stirring 10 minutes；The temperature of system in reaction kettle is dropped to
30 DEG C, the whole speed of the rotation of reaction kettle is reduced to 800 revs/min, stirs 10 minutes: the temperature of system in reaction kettle being raised to 40 again
DEG C~50 DEG C, the whole speed of the rotation of reaction kettle is increased to 1000 revs/min, and in 3~5 minutes, the preservative benzene first of 0.3kg is added
Sour sodium obtains target product after blowing.
Embodiment 6:
The 7# white oil of 50kg is added in clean reaction kettle, control revolving speed is 1000 revs/min, increases the temperature to 60~70
DEG C stirring 10 minutes；The organic soil stabilizer of 2kg is added, keeping the temperature of system in reaction kettle is 60~70 DEG C, is stirred 15 minutes；
Then 2kg extracting and cutting agent (1kg butyrolactone+1kg triethylene glycol butyl ether) is added, stirs 15 minutes；It then will in 1 hour
The anionic polyacrylamide pulvis of 42.5kg makes to be completely dispersed under 1000 revs/min of speed agitated；Keep reaction kettle
The temperature of interior system is 60 ± 5 DEG C and continues stirring 10 minutes；Under conditions of the temperature of system is 60~70 DEG C in reaction kettle, to
Aforesaid reaction vessel is slowly added to 5kg emulsifier (3kg Tween-20+2kg Arlacel-80), keeps 1000 revs/min of mixing speeds constant
Continue stirring 10 minutes；The temperature of system in reaction kettle is dropped to 30 DEG C, the whole speed of the rotation of reaction kettle is reduced to 800 revs/min,
Stirring 10 minutes: the temperature of system in reaction kettle is raised to 40 DEG C~50 DEG C again, the whole speed of the rotation of reaction kettle is increased to 1000
Rev/min, in 3~5 minutes, the preservative hexadecyltrimethylammonium chloride of 0.5kg is added, obtains target product after blowing.
Test result:
1, it is determining to stablize the time
By the way that prepared suspension emulsion to be stored at room temperature, observation sedimentation and separation time determine stability.
1 separation time of table determines
2, swelling time determines
By the formula synthetic sample of embodiment 3, the sample stirring that addition mass fraction is 0.1% in salt water is made into molten
Liquid measures (No. 0 rotor using Brookfield DV-II viscosimeter；100 revs/min) solution in different times under viscosity
Value, the results are shown in Table 2.The result shows that sample i.e. reachable stable viscosity, dissolution time in 3 minutes are 3 minutes.
The dissolution time of 2 suspension emulsion polymer of table
| Dissolution time (min) | Viscosity (mPa.s) |
| 0.5 | 5.1 |
| 1 | 6.6 |
| 2 | 8.4 |
| 3 | 8.4 |
3, resistance-reducing yield determines
The use of mass fraction is 0.1% sample wiring solution-forming, measures its resistance-reducing performance.Using length be 2m, caliber is
The straight tube of 10mm adjusts the flow of pump, measures resistance-reducing yield of the embodiment 4 under different flow, and experimental result is as shown in table 3.
The measurement of 3 resistance-reducing yield of table
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.
Claims (10)
1. a kind of suspension emulsion type slippery water friction reducer, which is characterized in that the suspension emulsion type slippery water friction reducer includes with weight
The following components of meter:
35~55 parts of white oil, 0.5~3.5 part of stabilizer, 0.5~2.5 part of extracting and cutting agent, 25~55 parts of polyacrylamide pulvis, cream
2.5~5.5 parts of agent, 0.2~0.6 part of preservative, preferably 40~50 parts of white oil, 1~3 part of stabilizer, 1~2 part of extracting and cutting agent,
30~50 parts of polyacrylamide pulvis, 3~5 parts of emulsifier, 0.3~0.5 part of preservative.
2. suspension emulsion type slippery water friction reducer according to claim 1, wherein the white oil is No. 7 or No. 10 white oils.
3. suspension emulsion type slippery water friction reducer according to claim 1, wherein the stabilizer is organoclay.
4. suspension emulsion type slippery water friction reducer according to claim 1, wherein the extracting and cutting agent is triethylene glycol monobutyl
Ether and/or butyrolactone.
5. suspension emulsion type slippery water friction reducer according to claim 1, wherein the emulsifier is selected from Tween-20, department
At least one of disk -80, Tween-80, OP-10 and polyether silicone oil.
6. suspension emulsion type slippery water friction reducer according to claim 1, wherein the preservative is formaldehyde, hexadecane
At least one of base trimethyl ammonium chloride and sodium benzoate.
7. suspension emulsion type slippery water friction reducer according to claim 1, wherein the polyacrylamide is poly- for anion
Acrylamide or copolymer for salt resistance monomer and acrylamide monomer；The salt resistance monomer is n-vinyl pyrrolidone, 2-
Vinylpyridine, acryloyl morpholine, vinyl sulfonic acid, acrylic sulfonic acid, vinylbenzenesulfonic acid and 2- acrylamido -2- methyl
At least one of propane sulfonic acid.
8. the preparation method of suspension emulsion type slippery water friction reducer described in any one of claim 1-7, which is characterized in that
The preparation method includes the following steps:
Step 1: white oil is placed in the reaction kettle of rotation；
Step 2: stabilizer is added into reaction kettle, stirs, be completely dispersed stabilizer；
Step 3: continuously adding extracting and cutting agent under agitation；
Step 4: polyacrylamide pulvis is added, it is lasting to stir；
Step 5: emulsifier is added, it is lasting to stir；
Step 6: cooling down and continuing to stir；
Step 7: preservative is added, the suspension emulsion type slippery water friction reducer is obtained.
9. preparation method according to claim 8, wherein step 1 into step 5, temperature in reaction kettle is 50~
80℃；For step 6 into step 7, the temperature in reaction kettle is 30~40 DEG C.
10. preparation method according to claim 8, wherein revolving speed >=800rpm of reaction kettle；Step 4: step 5 and
In step 6, the time persistently stirred is 5-20min.
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| CN112175208A (en) * | 2020-09-30 | 2021-01-05 | 江西富诚生态环境科技集团有限公司 | Polymer suspension emulsion for fracturing fluid and preparation method thereof |
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| CN113684016A (en) * | 2021-08-27 | 2021-11-23 | 西安长庆化工集团有限公司 | Super-salt-tolerant suspended slickwater resistance reducing agent and preparation method thereof |
| CN113943568A (en) * | 2021-11-18 | 2022-01-18 | 东营宝莫环境工程有限公司 | Preparation method of hydrophobic association temperature-resistant salt-resistant polyacrylamide suspended emulsion thickening agent for water-based fracturing fluid |
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| CN116284564A (en) * | 2023-05-12 | 2023-06-23 | 东营市宝泽能源科技有限公司 | Emulsion resistance reducing agent and preparation method and application thereof |
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| CN113549442A (en) * | 2021-08-30 | 2021-10-26 | 四川奥赛德材料科技有限公司 | Functional composite thickening agent for integrated fracturing process |
| CN113943568A (en) * | 2021-11-18 | 2022-01-18 | 东营宝莫环境工程有限公司 | Preparation method of hydrophobic association temperature-resistant salt-resistant polyacrylamide suspended emulsion thickening agent for water-based fracturing fluid |
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| CN116284564A (en) * | 2023-05-12 | 2023-06-23 | 东营市宝泽能源科技有限公司 | Emulsion resistance reducing agent and preparation method and application thereof |
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